Re: FMU.GZ crashing

David Mosberger-Tang (davidm@AZStarNet.COM)
Sun, 17 Nov 1996 03:34:00 -0700

>>>>> On 17 Nov 1996 09:59:17 -0000, Eric Smith <eric@brouhaha.com> said:

Eric> David Mosberger-Tang <davidm@AZStarNet.COM> wrote:
>> In particular, do NOT touch segments 0-2 in the flash ROM since
>> that's where the minidebugger lives. If the minidebugger goes
>> south, you're in for real trouble (it's possible to recover from
>> that case still, but it's hairy).

Eric> It's not that hairy, is it?

Eric> I've wiped out the entire flash on my UDB twice, once
Eric> deliberately and once by accident while hacking fmu. All I
Eric> had to do was move the jumper from the normal boot setting to
Eric> the emergency recovery setting, boot SRM from the recovery
Eric> floppy, and reprogram the flash. It worked fine.

The above discussion was about an eb164. eb164 != UDB.

Yes, you can recover from a wedged flash rom on an eb164 or cabriolet
too, but it's hairy, trust me. Last time I checked, there was no
(floppy-based) fail-safe loader for those machines.

--david

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